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区域地质概述 矿床位于扬子准地台西缘,康滇地轴中段,大田复背斜南南东翼。 区内出露地层主要是下元古宇康定群大田组深变质——混合岩系,其次是中元古宇河口中级变质岩系。金矿就赋存在河口群落函组上段火山——沉积变质岩中。 大田组是区内最古老的地层。邻区——米易、同德等地区相当于本组地层的同位素年龄值多为17.13——19.58亿年,最大年龄值为29.5亿年。由此推断,区内的康定群与我国北方的滹沱群、辽河群等地层相当,可能属下元古宇休伦界。
Regional geological overview Deposits are located in the western margin of the Yangtze Platform, the middle section of the Kang-Dian axis, Dae-Tian anticline south-east wing. The exposed strata in this area are mainly the metamorphic-mixed rock series of the Dae-Kang Formation in the Lower Proterozoic Kangding Group, followed by the middle metamorphic rock series of the Zhongyuan Guyu Estuary. The gold deposit is deposited in volcanic-sedimentary metamorphic rocks in the upper part of the Hekou Group Habitat. Daejeon is the oldest strata in the area. Adjacent areas - Miyi, Tongde and other areas equivalent to the formation of the isotope age value of mostly 17.13--1958 million years, the maximum age of 2.95 billion years. It can be inferred that the Kangding Group in the area is quite similar to the Hutuo Group and Liaohe Group in the north of our country, and may belong to the sub-ancient Yulun Lun community.